Unit [VCL and LCL] MRVType;
Unit [FMX] fmxMRVType;
TRVCMD = class(TPersistent)
This class has the following properties:
•Cmd: TRVMAnsiString – name of the command
•Sessionkey : TRVSessionkey identifies the session where this command was received.
When implementing your own commands, do not start their names with 'RV_' and 'RVS_'. These prefixes are reserved for internal commands.